When we try to access non static variable from static method compiler will throw error

static reference to the non-static field

With Error code

JavaNonStaticExample.java

public class JavaNonStaticExample {

	int a = 1;

	public static void main(String[] args) {
		System.out.println("static variable a:"+a);
		// Error by compiler
		// Cannot make a static reference to the non-static field a
	}
}

To Remove error, you need to make a variable as static

Without Error code

public class JavaNonStaticExample {

	static int a = 1;

	public static void main(String[] args) {
		System.out.println("static variable a:"+a);
		// No Error by compiler
	}
}